LG LPA-735 Service Manual page 25

* Chargeing Circuit
No turn on Red LED
YES
Is 9U1 OK?
YES
Is IC9U4)OK?
YES
Is 9L1, OK?
YES
Is IC(9U3) OK?
NO
Is 8.4V of 9J1_Pin4 OK?
NO
Replace 9U1.
NO
Replace IC(9U4).
NO
Replace 9L1.
NO
Replace IC(9U3).
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